Hoeace k eowell



(NQ Model.)

fr. E.

N4 Firms ynpnfumugnphn. wub-Imm n c UNITED STATES PATENT OEEICE.-

HORAOE N. ROVELL, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO JOHN IV. DUXBURY, OF SAME PLACE.

eALvANle RING.

SPECIFICATION forming part of Letters Patent 1\To 3'i1.521. dated October 11. 1887 (No model.)

To all whom it may concern.-

Be it known that I, HORACE N. ROWELL, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Galvanic or Electric Rings,of which the following is aspecitication.

Myinvention relates to electric rings, bracelets, belts, &c., for medicinal or health purposes, and has for its object to produce im- Io proveruents in such devices whereby better electrical effects can be secured than in such devices as heretofore constructed.

To these ends my invention consists in an electric ring formed of electro positive and I5 electro-negative metals-such as silver, copper, zinc, iron,&c.with an insulating or electrically different substance between them, the complete ring so formed being preferably inserted in a band of any suitable material.

Reference is to be had to the accompanying drawings and to the letters of reference marked thereon, forming a part of this specification, the same letters indicating the same parts wherever they occur.

Of the drawings, Figure l represents a galvanic or electric ring constructed in accordance with my invention. Fig. 2 represents a sectional view of the same. Fig. 3 represents a view of the ring before being secured in the 3o outside band. Fig. 4 is a cross-section ofthe st-ructure Shown in Fig. 3.

In carrying out my invention, I form a ring, A, of two rings, an, of relatively electro-positive and electro-negative metals--such as Zinc, copper, silver, iron, or the likeand a single ring, b, preferably of some insulating` material, which rings are soldered or otherwise secured together, with the rings a a ou the outside of the circle and the ring b between them, and 4o cover the entire ring so formed with a baud,l

c, formed of anysubstance having good electric conducting properties-that is, I may form the outside rings, a a, of zinc and silver, the intermediate ring, b, of vulcanized rubber,and the band c of copper or iron. NVith a ring so formed,when any portion of the human bodyas a finger, for instance-is placed inside of the ring. so as to connect one of the' outside rings with the other, an electric current is caused to tlow across the flesh or moist skin 5o from one such ring to the other.

By using various combinations of metals and insulating substances a greater or smaller amount of current may be set up in different rings to suit different circumstances.

Vhile the ring constructed as shown and described is formed to give the best results, so far as my experience has extended, it is obvious that theintermediate ring,b,need not be formed of insulating material, as a substance electricio ally different from-rings a a would serve some purposes. Again,a greater number than three rings, a a I), may be formed for the inside of the complete ring, as though, for example, two rings like that shown in Fig. 3 were placed 65 side by side and secured together. So, also, the ring shown iu Fig. 3 may be used without the outside covering-band, c.

By my invention a galvanic or electric ring may be easily and cheaply manufactured,and 7o is much more effective than rings as heretofore made, which consist of a metallic body constituting the outer face, with bands or threads of another metal inserted in the body. and with the latter forming alternate Zones of electropsitive and electro-negative metal.

Having thus described myiuvent-ion, what I claim is- A galvauic orv electric ring, A, formed of electro-positive and electronegative metals- 8o such as silver, copper, zinc, or iron-with an intermediate ring of au electrically different substance, the complete ring so formed being inserted in a band, c, of any suitable material, as set forth.

In testimony whereof I havesigned my name to this specificatiomin the presence of two subscribing witnesses, this 1st day of April, 1887.

HORACE N. ROVELL.

Vitnesses:

ARTHUR W. CRossLEY, A. D. HARRISON. 

